It's obvious that I'm writing more reviews on the basis of a certain virus preventing me from going out, I haven't got it but I'm stuck regardless so lets keep going.

Kosaku is a very talented boxer but recently he's had food problems in which he over eats, causing him to fail his weight class and puke up in the ring from body blows. After mistaking Kosaku for a starving beggar, Sister Angela, a nun in training hopes to steer Kosaku on the right path to regain his career but Kosaku will need all the help he can get.
This is really good writing, the chemistry between Kosaku and Angela feels real, Kosaku's food struggles are very relatable speaking from experience and I find it utterly hilarious that Angela can drink pretty hard even though she's probably not supposed to, it even made for a half decent live action version. It's also a very digestible sized OVA as it manages to do pretty much it's entire story in 50 minutes, wish I could say the same about Rumiko Takahashi's other works.
No dub but it still managed a licensed DVD in the west, it might get one if it gets a re-release.
Final Verdict: This is a good OVA, it goes to show that Rumiko Takahashi can write a decent story without going over a hundred episodes and deal with some real mental disorders instead of constant lol romance comedy.